package com.example.cursor.interceptor;

import com.example.cursor.exception.BusinessException;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class LoginInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
        HttpSession session = request.getSession();
        if (session.getAttribute("user") == null) {
            throw new BusinessException("NOT_LOGIN", "请先登录");
        }
        return true;
    }
}